Pcm Basic Cruise Speed Control System - PCM HO303 MPI Owner's Operation And Maintenance Manual

PCM BASIC CRUISE SPEED CONTROL SYSTEM

(OPTIONAL)
Cruise Mode allows electronic control of the engine at an
operator selected boat or engine speed. The operator
has the option of entering Cruise Mode one of two ways.
MPH Mode allows the operator to set a cruise speed
based on boat speed. RPM Mode allows the operator
to set a cruise speed based on engine RPM. When
you are in Cruise Mode, the engine is electronically
controlled to maintain the desired MPH selected, or
engine RPM, regardless of sea conditions or maneuvers.
NOTE: Your application may consist of a Digital Speed
Control operated by a Controller Area Network (CAN)
device. Refer to your boat dealer for clarifi cation of the
system on your application.
MPH CRUISE MODE
When the Basic Cruise System is operated in the MPH
Mode, the operator will select the desired boat speed he
wishes to maintain. Boat speed information is provided
to the ECM via the paddle wheel. The paddle wheel is
the same device that provides speed information to the
boat's speedometer. As load conditions change on the
boat, such as a skier or wake boarder pulling against the
boat or the boat entering / exiting a turn, the speed of
the boat typically will vary; however, the ECM monitors
these variations based on the paddle wheel input and
responds by increasing or decreasing engine RPM to
maintain the operator selected boat speed.
IMPORTANT: If the paddle wheel input is lost, while
operating in the MPH Cruise Mode, engine RPM will
increase by approximately 60 rpm. The operator will
feel this as a 'bump' as boat speed increases and
the MIL or Check Engine Lamp will be lit. Speed
will remain constant at this new point. If the paddle
wheel input is re-established, boat speed will drop to
the operator set point and the MIL will turn OFF.
If you enter MPH Cruise Mode and there is no input
from the paddle wheel, when you set a new speed
or resume the previous set speed, the system will
initially hold the set speed then slowly begin to ramp
the speed up to throttle handle position and turn on
the MIL. Pull the throttle handle back and exit MPH
Cruise Mode. RPM Cruise Mode is not affected by
the loss of the paddle wheel input.
With the engine off and the boat on a lift or the
trailer, inspect the paddle wheel for damage or
blockage. If you are unable to correct the problem
at the paddle wheel, contact your authorized PCM
Premier Dealer for service.
RPM CRUISE MODE
When the Basic Cruise System is operated in the
RPM Mode, the operator will select the desired engine
RPM he wishes to maintain. Engine speed or RPM
OPERATING INSTRUCTIONS - 5
M P H
C u r s i e
R P M
Figure 5-4 PCM Basic Cruise Control Panel (Typical)
information is monitored by the ECM, and is the same
signal information the ECM provides to drive the
Tachometer on the instrument panel. The ECM monitors
the tach signal and maintains engine RPM at the
operator selected point. As load conditions change on
the boat, such as a skier or wake boarder pulling against
the boat or the boat entering / exiting a turn, the speed of
the boat typically will vary; however, engine RPM should
remain at the operator selected point.
ENTERING CRUISE MODE
1. Select the desired cruise mode by pressing the
MPH/RPM Cruise switch to the MPH or RPM
position.
NOTE: The Cruise Lamp should be OFF. If the Cruise
lamp is blinking, the system has "remembered" a set
speed from a previous Cruise Mode operation. If this
speed is unknown, or is not the desired set speed,
simply press the Speed Cancel switch and the lamp will
turn OFF.
2. Move the throttle to the desired speed.
3. Press the Speed Set switch. The Cruise Lamp
will blink until the throttle handle is moved above
the set point. Push the throttle handle to the full
forward position.
NOTE: The throttle handle should be in the full forward
position at this time. This allows the electronic control
suffi cient range to adjust and maintain the engine at the
desired set speed.
4. The Cruise Lamp should be steady ON indicating
that Cruise Mode is engaged.
5. Pressing the Speed (+)/Res (Increase/Resume)
or (-) (decrease) switch allows the operator to
adjust the set speed up or down 20 RPM, or.25
MPH, each time the switch is engaged.
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